writing decimals in the form a x 10n

Writing Decimals in the Form A x 10n

Master standard form with ease! 🚀 Learn how to write very large and very small numbers using powers of 10. Convert decimals into the form a × 10ⁿ where 1 ≤ a < 10 and n is an integer. Understand how powers of 10 make calculations clearer and more efficient. Perfect for building strong number sense and exam confidence! 💡📈

Target Age:

Lesson Overview

By the end of this unit, students will:

  1. Define standard form as a way to write very large or very small numbers using powers of 10
  2. Convert decimals to standard form by expressing them as a x 10n where 1 ≤ a < 10 and n is an integer
  3. Understand the concept of powers of 10 and their role in standard form.

Curriculum Alignment: Key Stage 3: Number

  • interpret and compare numbers in standard form A x 10n 1≤A<10, where n is a positive or negative integer or 0
Last updated on: February 19, 2026

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